Gareth James Delany is an Irish international cricketer who was born on 28 April 1997 in Dublin, Ireland. Delany is a bowling all-rounder who bats right-handed and bowls right-arm wrist spin. He has represented the senior national side in both forms of white-ball cricket. Currently, he plays for Munster Reds in Irish domestic cricket and his sister Laura Delany is the captain of the Irish national women’s cricket team.

He made his T20 cricket debut for Leinster Lightning in the 2017 Inter-provincial Trophy on 26 May 2017. He made his first-class debut for Leinster Lightning in the 2017 Inter-Provincial Championship on 5 June 2017. He made his List A debut for Leinster Lightning in the 2017 Inter-Provincial Cup on 10 September 2017. In July 2019, he was selected to play for the Dublin Chiefs in the inaugural edition of the Euro T20 Slam cricket tournament. However, the following month the tournament was cancelled.

In June 2019, he was named in the Ireland Wolves squad for their home series against the Scotland A cricket team. Later the same month, he was named in Ireland's squad for their series against Zimbabwe. He made his T20I debut for Ireland against Zimbabwe on 12 July 2019. In September 2019, he was named in Ireland's squad for the 2019 ICC T20 World Cup Qualifier tournament in the United Arab Emirates. In December 2019, Delany was named in Ireland's ODI squad for their series against the West Indies. He made his ODI debut for Ireland, against the West Indies, on 7 January 2020.

In January 2020, Delany was one of nineteen players to be awarded a central contract from Cricket Ireland, the first year in which all contracts were awarded on a full-time basis. On 10 July 2020, Delany was named in Ireland's 21-man squad to travel to England to start training behind closed doors for the ODI series against the English cricket team. In February 2021, Delany was named in the Ireland Wolves' squad for their tour to Bangladesh. In September 2021, Delany was named in Ireland's provisional squad for the 2021 ICC Men’s T20 World Cup and then again in October 2022 for the 2022 edition of the same tournament.